This study aims at building an ITS gene dataset to support the Italian Health Service in mushroom identification. The target species were selected among those mostly involved in regional (Tuscany) poisoning cases. For each target species, all the ITS sequences already deposited in GenBank and BOLD databases were retrieved and accurately assessed for quality and reliability by a systematic filtering process. Wild specimens of target species were also collected to produce reference ITS sequences. These were used partly to set up and partly to validate the dataset by BLAST analysis. Overall, 7270 sequences were found in the two databases. After filtering, 1293 sequences (17.8%) were discarded, with a final retrieval of 5977 sequences. Ninety-seven ITS reference sequences were obtained from 76 collected mushroom specimens: 15 of them, obtained from 10 species with no sequences available after the filtering, were used to build the dataset, with a final taxonomic coverage of 96.7%. The other 82 sequences (66 species) were used for the dataset validation. In most of the cases (n = 71; 86.6%) they matched with identity values ≥ 97–100% with the corresponding species. The dataset was able to identify the species involved in regional poisoning incidents. As some of these species are also involved in poisonings at the national level, the dataset may be used for supporting the National Health Service throughout the Italian territory. Moreover, it can support the official control activities aimed at detecting frauds in commercial mushroom-based products and safeguarding consumers.
Cephalopods, an appreciated seafood product, are common hosts of marine cestodes. The aim of this work is to report visible alive plerocercoids in longfin inshore squid (Doryteuthis pealeii), a cephalopod species commercialized as fresh and whole in Italy. Seventy D. pealeii from the Northwest Atlantic (FAO area 21) were collected and visually inspected. In total, 18 plerocercoid larvae were found in the viscera of 10 host specimens (P: 14.3% 95% CI 7.1–24.7; MI: 1.8, MA: 0.26; range 1–4) and molecularly analyzed targeting the variable D2 region of the large subunit (LSU) rRNA gene and the cytochrome c oxidase subunit I (COI) gene. The molecular characterization allowed to identify all the plerocercoids as Clistobothrium sp., a cestode of the Phyllobothriidae family with Lamnidae sharks as definitive hosts, and cephalopods as second intermediate hosts. These findings represent the first molecular record of Clistobothrium sp. in D. pealeii, thus contributing to elucidate its poorly known life cycle. Even if not affecting consumer’s health, these visible parasites may represent a reason for disgust for consumers. Therefore, the results suggest that Food Business Operators should also check for the presence of these visible parasites during inspection and underline the importance of a correct consumers’ education.
Proper investment in mushroom production (farming and wild mushroom picking activities) may represent a winning strategy for many countries, including Italy, to better face the problems of food security and environmental impact, and to break away from imports, enhancing the local products. However, the risk related to the consumption of poisoning species requires governments to implement or reinforce effective control measures to protect consumers. Mushroom identification by phenotype observation is hardly applicable if morphologically-similar species, non-whole specimens, or clinical samples are involved. Genotypic analysis is a valid alternative. An ongoing research project involving the Experimental Zooprophylactic Institute of Lazio and Tuscany, the regional Mycological Inspectorate, the Tuscany Mycological Groups Association, and the Department of Veterinary Sciences of the University of Pisa aims to reinforce the collaboration among institutions for the management of mushroom poisoning. The core’s project aims to develop an internal genetic database to support the identification of wild and cultivated mushroom species in the Italian territory. The database will include Internal Transcribed Spacer (ITS) sequences retrieved from official databases (the NCBI GenBank and the BOLD system) which are considered to be reliable, after a proper selection process, and sequences from specimens collected directly and identified by expert mycologists. Once it is validated, the database will be available and further implementable by the official network of national laboratories.
Pufferfish (Tetraodontidae) inhabiting the Mediterranean Sea can represent an emerging public health risk due to the possible accumulation of marine neurotoxins (TTXs and STXs) in their tissues. In this study, the presence of pufferfish species in the Strait of the Sicily (Lampedusa Island, Italy) was investigated using a Citizen Science (CS) approach involving local fishermen. A sub-group of specimens collected were sent to the National reference Laboratory on Marine Biotoxins for de-termining the presence of TTXs using a validated HILIC-MS/MS method on fish tissue. The STXs presence was also screened in some specimens. Overall, 56 specimens, identified as Sphoeroides pachygaster (Müller &Troschel, 1848) were collected. Data on specimen total length, body weight, fishing method, catch area (with relative depth temperature and salinity) were analyzed and compared with the S. pachygaster records reported in Guardone et al. (2018), which were appro-priately updated until 2022. All the analysed tissues were found to be negative for both TTXs and STXs. The key role of the CS in monitoring potentially toxic marine species was proved. Outcomes from this study, the first investigating the toxicity of S. pachygaster in Italian waters, may provide useful data for the proper assessment of this emerging risk
Obtaining a Veterinary Surgeon degree relies on the acquisition of “Day One Competences” (DOCs), among which professional skills related to meat inspection are acquired during visits to abattoirs. In 2020, lockdown measures due to COVID-19 pandemic limited on-site practical training. The present study describes the creation of an e-learning course on bovine and swine slaughtering as an alternative tool for compulsory DOCs achievement within the course “Inspection and control of food of animal origin” during the fourth year of the Veterinary Medicine degree program (Department of Veterinary Sciences of the University of Pisa). Academics and external professionals took part on the planning and development of the learning material. Video pills, consisting of shooting of the slaughtering coupled with trainers’ descriptive explanations, were produced. The perceived effectiveness of course contents, trainers’ communication skills and technical quality were assessed with a questionnaire. The developed e-learning platform consisted of four main sections (Introduction, Swine slaughtering, Bovine slaughtering and Additional topics), integrated by multiple-choice questions for the student’s self-assessment. According to students’ assessment, the platform, of high technical quality, effectively condensed contents on meat inspection. Despite the unique and irreplaceable role of practical training in the achievement of the professional skills included in the veterinary curriculum, the e-learning course may concur in providing DOCs and is in line with the adoption of a modern teaching model where e-learning resources engage students in deeper learning approaches.